When you visit a website (just for starters) your IP address is shown to the site. Sometimes, surely through no fault of your own, your access to a site may be blocked. You use a proxy to change your IP address and circumvent this.

Note that adblockers might block our captcha, and other functionality on BHW so if you don't see the captcha or see reduced functionality please disable adblockers to ensure full functionality, note we only allow relevant management verified ads on BHW.